AutoIt Requires Chilkat v11.4.0+

Call a JavaScript Function Returning an Object

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Demonstrates how to call a JavaScript function that returns an object. AutoIt

Local $bSuccess = False

;  This is the JavaScript function we'll call:

;  function getSettings() {
;      return {
;          theme: "dark",
;          notifications: true,
;          version: 1.0
;      };
;  }

$oSbScript = ObjCreate("Chilkat.StringBuilder")
$oSbScript.Append("function getSettings() {")
$oSbScript.Append("    return {")
$oSbScript.Append("        theme: ""dark"",")
$oSbScript.Append("        notifications: true,")
$oSbScript.Append("        version: 1.0")
$oSbScript.Append("    };")
$oSbScript.Append("}")

$oJs = ObjCreate("Chilkat.Js")

$oResult = ObjCreate("Chilkat.JsonObject")
$oResult.EmitCompact = False

;  Call Eval to add the function to the context's global object
$bSuccess = $oJs.Eval($oSbScript,$oResult)
If ($bSuccess = False) Then
    ;  Examine the result for an exception.
    ConsoleWrite($oResult.Emit() & @CRLF)

    ;  Also examine the LastErrorText.
    ConsoleWrite($oJs.LastErrorText & @CRLF)
    Exit
EndIf

;  ------------------------------------------------------------------------------
;  Call the function getSettings()

$oFuncCall = ObjCreate("Chilkat.JsonObject")

;  Create JSON specifying the function name and arguments
;  The function has no arguments, so we only specify the name.

;  {
;    "name": "getSettings",
;  }

$oFuncCall.UpdateString("name","getSettings")

$bSuccess = $oJs.CallFunction($oFuncCall,$oResult)
If ($bSuccess = False) Then
    ;  Examine the result for an exception.
    ConsoleWrite($oResult.Emit() & @CRLF)

    ;  Also examine the LastErrorText.
    ConsoleWrite($oJs.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($oResult.Emit() & @CRLF)

;  Output:
;  {
;    "type": "object",
;    "value": {
;      "theme": "dark",
;      "notifications": true,
;      "version": 1
;    }
;  }

;  Examine the object's members
ConsoleWrite("theme: " & $oResult.StringOf("value.theme") & @CRLF)
ConsoleWrite("notifications: " & $oResult.BoolOf("value.notifications") & @CRLF)
ConsoleWrite("version: " & $oResult.IntOf("value.version") & @CRLF)

;  Output:
;  theme: dark
;  notifications: True
;  version: 1